Relay



Patented July 21, -1925.

UNITED STATES PAUL R. FORTIN, OF SCHENECTADY, NEW YORK, ASSIGNOR TO' GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

RELAY.

Application led June 9,

To all whom t may concern.'

Be it known that I. PAUL R. FORTIN, a citizen of the lUnited States, residing in Schenectady, in the'county of Schenectady,

State of New York, have invented certain new and useful Improvements in Relays, of which the following is a specification.

My present invention relates to relays,- and more particularly to relays of the type whichare adapted to be operated byl weak currents such as those employed for signaling pur oses.

Tihe o ject of my invention is-to provide a. relay structure which/ Iis capable of being operated reliably by very small currents. and which is also capable of very line adjustment.

The novel features which I believe to be characteristic of my invention are set forth in the appended claims. My invention itself. however, bothas to its organization and method of operation will bestA beunderstood by reference to the following de'- scription taken in connection with the accompanying drawing in which Fig. 1 Ais a fro-nt elevation, and Fig. 2 is a side elevation of a relay constructed vin accordance with my invention.

As indicated in the drawing the relay comprises an electromagnet 1, having a yoke 2 and an armature 3' which is pivoted at 4. The electromagnet is supported on the yoke 2 by means of a threaded core eXtension and a cooperating nut 2 and by means of the screws 5 upon a supporting member 6 which in turn is secured to a base by means s of the screws 7. Two spring contact members 8 and 9 are also supported on the supporting member 6 by means of the screws 10 being insulated from the support and from each other by means of the spacing members 11, 12 and 13. These spring contact members'may be connected in any suitable way to the circuit which is to be controlled by the relay. The armature 3 of the electromagnet 1 acts through the pin 14 upon the spring contact member 8, to open the contact at 15 when the' armature is actuated.

Separate means is provided for adjusting each of the spring contact members 8 and 9.

Spring contact4 member. 9 is relatively stiff with respect to the member 8, and is provided with a separate reinforcing strip 16A .secured to contact spring member 8.

1922. Serial No. 567,065.

justment ofthe pressure between thc two contact springs. The spring contact member 8 is provided with a. separate line adjustment which comprises a separate reinforcing spring 18 extending parallel thereto, as indicated, and a spring member 19 which extends atl a right angle to the other contact springs and which is supported by means of the screw 2O from the supporting member 6. The adjusting screw 21 bears upon the free end of the spring` 19 and the spring 19 bears upon the pin 22, which is A small movement of the screw 21 produces a much smaller movement of the pin 22 and of the spring contact member 8 and its'reinforcing spring 18. In vthis way a very delicate adjustment of the spring contact member 8 may be made both for adjusting its pressure upon the spring contact member 9. and also for adjusting the relation of the pin 14 to the armature Sto insure the desired operation of the relay. Spring stop members 23 are provided which bear against the knobs of the screws 17 and 21 to prevent them dentally turned after the relay has once been adjusted.

A relay such as I have described is adapted to a wide variety of uses. As one example of such use I have found that it is well adapted for the control of the operation of a radio transmitting set by means of small alternating current' or interrupted direct current impluses transmitted from a distance to the actuating coil l'over an ordinary telephone line.

While I have shown and described the preferred embodiment of my invention it `will be apparent that my invention is by no means limited to the precise structural arrangement shown and described, but that many modifications in the relation of the different parts of the relay and of their form may be made without departing from the scope of my invention as set forth in the appended claims.

from being acci- What I claim as new and desire to secure by Letters Patent of the United States, is

1. The combination in a relay of an electromagnet, an armature controlled thereby, a pair of substantially parallel spring contact members one of which is adapted to be moved by the movement of said armature, a ,common support for said contact members and independent means for adjusting each of said spring contact members.

2. Thecombination in a relay of an electromagnet, an armature controlled thereby, a pair of spring contact members one of which is more flexible than the other and one of which is adapted to be moved by the movement of said armature4 and independent means for -adjusting each of said spring contact members. v

3. The combination in a relay of an electromagnet, an armature controlled thereby, a pair of spring contact members, one of which is adapted to be moved by the move-V .ment of said armature and independent means for adjusting each of said spring contact members, one of said adjusting means being adapted to provide a finer adjustment th an the other.

4. The combination in a relay of an electromagnet, an armature controlled thereby, a pair of spring contactmembers, one of which is more iexible thanl the other, and

one of which is adapted to be moved by the movement of said armature, and independent means for adjusting each of said spring contact members, the adjusting means for the more exible member being adapted to provide a ner adjustment than the other.

5. The combination in a relay of an electromagnet, an armature controlled thereby, a pair of spring contact members one of which is more flexible than the other, means whereby the more flexible member may be moved by the movement of said armature and independent means for adjusting each of said spring contact members.

6. The combination of a relay of an electromagnet, an armature controlled thereby, a pair of spring contact members one of which is more fiexible than the other, means whereby the more lexible member may bemoved out of contactjwith the other bythe movement of said armature and independent' means for adjusting each of said spring contact members. t

7. The combination in a relay of an electromagnet, an armature controlled thereby, a pair of spring contact members one of which -is more exible than the other, means whereby the more flexible member may be moved by the movement of said armature and independent means for adjusting each of said spring contact members, one of said adjusting means being' adapted to provide a finer adjustment than the other.

8. The combination in a relay of an electhan the other.

9. The combination in a relay of an elec- ,l

tromagnet, an armature controlled thereby, a pair of spring contact members one of which is more flexible than the other, means whereby the more flexiblemember may be moved by the movement of said armature, an adjusting screw which acts directly upon the stier member and a separate adjusting screw which acts upon the more iiexible member through a separate adjustment spring.

10. The combination in a relay of an electromagnet,` an 1armature controlled thereby, a pair of spring contact members one of which is more exible than the other, means whereby the more flexible member may be moved by the movement 'of said armature, an adjusting screw which acts directly upon the stier member and a separate adjusting screw which acts upon the more iexible member through aV separate adjusting spring extending at a right angle thereto.

11. The combination in a relay of an electromagnet, an armature controlled thereby, a pair of spring contact members one of which is more flexible than the other, means l whereby the more exible member may be moved by the movement of said armature, an

tromagnet, an armature controlled thereby, a

pair of spring contact members one of which is more flexible than the other, means whereby the more flexible member may be moved by the movement of said armature, an adjusting screw which acts directly upon the sti'er member and a separate adjusting screw which acts upon the more flexible member through a separate adjustment spring extending at a right langle thereto,l

and separate reinforcing members extending parallel with and which coact with each of said spring members and with the adjusting means therefor.

In witness whereof, I have hereunto set my hand this 8th day of-June, 1922.

PAUL R.' FORTIN. 

